Dynamic characterization of nanostructured materials using electron microscopy
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김성규 세종대 As an advanced approach for analyzing the electrical, magnetic, chemical, and electrochemical properties of materials, many researchers have attempted to use electron microscopy in real-time. The discovery of various in situ EM methods allowed us to observe the chemical reaction that was occurred quickly, and we can conduct an experiment under dynamic environments similar to the actual condition in nanostructured materials. For the electronic device applications, the chemically oxidized graphene was used as an active layer. The microstructural changes and electronic structure not only reveal the mechanism of resistive switching but also enable the development of an improved device with the engineered structure. In addition, magnetic materials actively studied for in vivo studies can be dynamically observed. Recently, the direct observation of electrochemical reactions in the rechargeable batteries has attracted much attention because the phase transformation during the electrochemical cycle is directly related to stability. |